Stock Building Supply grew out of the Carolina Builders Corporation which was formed in 1922. Stock Building Supply is a building materials and services company for professional homebuilders and contractors in the United States. In addition to building materials, Stock Building Supply offers lending and insurance programs for construction financing, estimating and takeoffs, and installation services. The company supplies a variety of products, including: doors and windows, stairs, roofing, siding, insulation and drywall, lumber, decking, wall panels, engineered wood products, trusses, cabinetry, flooring, and more.
| Year | Pro Sales (millions) | Pro Sales Percentage of Total Sales | Total Sales (millions) | Year Over Year Change in Total Sales | Total Number of Yards | Number of Employees | Number of Outside Sales Personnel | ProSales 100 Ranking |
|---|
| 2010 | $818.0 | 95% | $861.0 | -40% | 57 | 2,300 | n/a | 7 |
| 2009 | $1,303.2 | 91% | $1,429.0 | -54% | 70 | 2,797 | 143 | 5 |
| 2008 | $2,975.1 | 93% | $3,199.0 | -24% | 208 | 8,761 | 938 | 2 |
| 2007 | $4,417.0 | 94% | $4,709.0 | -13% | 363 | 13,120 | 1,241 | 2 |
| 2006 | $5,150.7 | 97% | $5,310.0 | 20% | 323 | 17,000 | 1,173 | 2 |
| 2005 | $4,413.5 | 97% | $4,550.0 | 26% | 279 | 15,500 | 1,134 | 1 |
| 2004 | $3,492.0 | 97% | $3,600.0 | 33% | 236 | 10,300 | 700 | 1 |